Relay.



I R. H. MANSON.

RELAY.

I APPLICATION FILED we. 23, 1907.

927,739. I Patented July 13, 1909..

WIIHEEEES Invenl Ell" P E im TZ W m The relay of my invention is of 45 to the core.

50 the core.

imp STATES PATENT orrron.

RA; L MANSON, OF ELYR IA, OHIO, ASSIGNOR T O DEAN ELECTRIO COMPANY, OF ELYRIA,

OHIO, A CORPORATION OF OHIO.

RELAY.

Specification of Letters Patent.

Patented July 13, 1909.

D Application filed August 23, 1907. Serial No. 389,815.

tion.

My invention relates to relays, particularly relays adapted for use in telephone systems, the object being to produce improved and simplified construction and arrangement which will decrease the size of the relay without detracting from its efficiency.

In some instances, for example, in private branch exchange installations, very little 29 space is available for the telephone installation, and it is a very great convenience and some times a necessity to have very small so that a sufficient. number thereof can be installed in the available space.

such simple construction and compact arrangement that its size can be very greatly reduced Without. the least-decrease in etliciency of operation.

shape of the contact clips which I employ.

I provide a cylindrical core 1 which forms the sole support for all the various relay parts. The energizing winding 2 is mounted on the center of the core between the heads or end plates 3 and 4 of insulating material. The armature 5 is in the form of a fiatstrip, preferably of mild steel bent to the shape shown, the main part thereof eX tending over the coil substantially parallel The rear end extends down wardly and then horizontally, the horizontal part 6 being grooved to fit the core section 6', the whole armature structure being held in place by the screw 7, securing the end 6 to The front end of the armature extends downwardly and then horizontally forwardly, the horizontal part 8 forming the pole of the armature, there. being normallv sufficient spring tension in thearmature to hold the part 8 a sufiicient distance In the accompanying drawings which show from the core section 9 which forms the pole of the core. The part 8 extends a distance beyond the end of the core section 9 and carries a contact point 10.

Mounted below the core section 9 is a contact spring 11 formed of flat sheet material bent to the form shown, the body part thereof being clamped between the insulating sections 12 and 13 by means of a screw 11 which threads into the section 9. The insulating block 12 has its uppen face grooved out to fit the cylindrical core, and the rear edges of the insulating parts 12 and 13 and oddhe contact franae are square and rest against the insulating nead 3, thus holding themselves rigidly in position. The front end of'thecontact frame extends upwardly and then horizontally forwardly, the

horizontal section 15 havingthe platinum contactplate 16 whichds disposed opposite the contact point 10, and thus when the armature pole is a-ttracted and the armature frame moved downwardly, the contact point 10 engages contact plate 16. "Threaded into the upper side of the section 9 is a brass stud 17 whose upper end is threaded to receive the spring clamping nut 18 which nut serves to adjust the,normal air gap between the armature pole and the core pole. The part 19 of the stud which is of large diameter, projects a distance be lithe upper face of the core section 9 to forhr an abutment forreceiving the armature-pole upon attractipn thereof and for preventing sticking of the armature pole to the core. The contact clips for the. various parts of the relay are mounted at the rear end of the core under the corev section 6. These contact clips are 0!. sheet material and shaped as shown in Fig. 5, each comprising a body part 20 from the rear end of which and at one side thereof extends a clip arm 2-1. The frontend of the body part has feet while from the side of the body part extends the contact clip arm 23, there being also the opening 2st through the body part for receiving a clamping screw. I employ four of these clip plates mounted in a tier below the core section (5', as best shown in Figs. 2 and l, the alternate plates being reversed so that the clip arms 21 will appear at alternate sides to give greater space for conductors which are soldered to the ends of the clip arms. This reverse arrangement of the plates also causes alternate arrangen-ient of the clip arms'23,

the clip arms of the first and third plates appearing at the left side and the clip arms the clip plates to securely clamp them together and to the core section 6. The feet a 22 of the rclip plates and thefrontedges of the insulating strips and the insulating block abut against theinsulating head 4 of the coil and so assist in maintaining the. correct position of the clips. A'clip arm 28 also extends si-dewardly from the contact fraine 11' at the front of the corepand this clip arm is shown connected with the cliparm 23 of the lower clip plate by means of conductor 29 which passes through openings in the heads 3 and a. It will be noticed that there is no insulation shown between the screw 27 and the lower clip plate, and this clip plate is, therefore, in electrical contact with the core and with the armature. 23 of the first and second clip plates are shown as connected with the terminals of the energizing coil. Thus to connect the relay in circuit, it is necessary only to connect the various conductors with the contact clip arnis 21.

The relative dimensions-of the insulating v heads 3 and a and of the clip plates is such that the contact clip arms lie entirely Within the insulating heads so that when the re" are placed side by side with their insulating heads in engagement there will be no danger of electrical contact between the contact clip arms. The relays may be supported train common mounting plate or bar 29. The rear end 30 of the core 18 threaded and passes through thercornmon supporting plate 29',

insulating bushing 31 being inserted between the core and supporting bar to insulate the core therefrom, a clamping nut 32 serving to clamp the core rigidly in place. Below the core opening, a rectangular opening 33 may be provided in the plate through which opening the clip ends 21 may extend, and to prevent contact between the supporting plate and the chi ends the insulating strips 25 are made wider than the clip plates inorder to overlap the plates, the width of the insul ating strips being preferably equal to the width of the opening 33 so that the sides oi the opening will also assist in holding the insulatlng strips in proper alinement and position.

It is evident that a relay'built in accordance with my invention comprises a minimum number of parts and requires'very lit- 'tle laborin the manufacture of the parts and in the assembly thereoii The parts being so simple and :t'ew, the size of the relay can Contact clip arms be i ery greatly reduced. Although the size for' the relay is reduced the etiiciency is in no Wise impaired, and l find that the action in operation of a very small reli ij 'hhilt in ac- 'cordan'ce with my relay is justas strong and efiicient as that or larger relays in the prior art. The cylindrical pole end 9 and the flat armature pole end 8 seem to cooperate to cause concentration of the lines of force to produce a stroiig inagnetic field and torque.

Many modifications in theconstruction and arrangement could of course, be made which would still remain within the scope of my invent-ion, and I, therefore, do not wish tohe -limited to theparticular arrangement which I have shown and described.

I desire to secure by Letters Patent the following claims:

-1. ln a relay, the combination of a core; an energizing Winding on said core,an armaturefrigidly supported on said core,-a contact rigidly secured to the armature and an insulated contact supported on the core and secured directly to the core by suitable fastening neans, such ccntact adapted to cooperate with the contact on the armature.

2 A relay comprising a core, an energizing" winding supported on the middle por tion of the core an armature formed of fiat magnetic sheetanaterial secured to one end of the core, the other end of the core form ing a pole for attracting the armature upon current flow through energizing winding and contact n'icchanism supported from the core for coiiperating' with contacts on the armature nharinature constituting a combined n1" i return path and contact spring t relay 3., A relay coi' prising a core the in the form oi a cylindrical bar, an energi ing winding mounted along the middle part of the core,

a le -shaped armature frame formed of fiat magnetic sheet rterial, one end of the armature being sec d to one end of the core, of the armature bein disposed r the ether and of the core an carrying contact point, contact frame secured to the other end cf the core to be engaged by the armature contact npon attraction of the armature by the core current flows through energiain'g winding.

4-, A relay, comprising a core, an energizing winding mounted along the middle part oi the core; an armature 1n the form of spring plate formed of magnetic material, one end of the armature plate being" secured to the rear end. of the core, the free end of the armature being disposed over the 4 front end of the core to be'attracted thereby upon current l'lOWHhQ; through the Winding,

a contact frame of sheet material secured to the ' end or the arinamre upon nth-action thereof, and contact clip es secured in tic-r below the rearend L 1c s and connected with the the core to be engaged byv armature upon attraction semen winding terminals and with the armature and contact frame. I

5. In a relay, a cylindrical core, an energizing winding onthe core, insulating heads on the.core between which the winding is confined, an armature, contact mechanism controlled by the movements of the armature, and terminal clip plates secured to the cylindrical core and having one edge abutting against onset the insulating heads.

6. In a relay, the combination of a core, insulating heads engaged in the core and set ia'nvardly from the ends thereof to divide the core into an intermediary section and a rear and front section, an energizing winding engaging the core between -the insulating heads, an armature frame of magnetic and spring material secured at one end to the rear section of the core, the free end of the armature being disposed over the front section of the core to be attracted thereby upon current flow through the energizing winding, a contact frame secured below the front section 'of the core to beengaged by the Iereof, contact clip frames secured in a tlelfltfl slow the rear section of the core and electrically connected with the winding terminals and-with the contact frame and armature, the front edges of said clip frames abuttin againstthe rear insulating head to thereby e rigidly held in position. Y

7. In a relay, the combination of a core, an

' energizing winding on said core, an armature rigidly supported on saidcore, a contact supported from said, core to cooperate with a contact on the armature, and means for adjusting said armature relatively to the core.

8. A relay comprising a cylindrical core, an energizing winding on said core, an armature rlgidly secured to one end of the core,

.anda contact on the other end of the core, such other end of the core forming a pole armature .rigidly secured to-the core, a contact secured to .the armature, and an in-' sulated contact secured directly to th'e'core, suchcontacts adapted to cooperate with each. other when the armature is operated.

- 11. In a relay, the combination of a core, an energizing winding on said core, a movable armature rigidly secured to the core, a contact secured to the armature, and an in- ..sulated contact secured directly to the core,

such contacts'ad apted to cooperate with each other when the armatureis operated.

In witness whereof, I hereunto subscribe my name this th day of July A. D., 190.7.

RAY H. MANSON. -Wit11esses 'F. A. CORNELL,

A. J. ROBERTS. 

